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 the two Costa Rican ranges, known as the Cordillera de Talamanca, rises south of the Gulf of Nicoya, and extends midway between the two oceans towards the south-east. It follows exactly the curve of the mainland, and is continued into Panama, under the name of the Cordillera de Chiriqui. Its chief summits are Chirripo Grande (11,485), the loftiest in the whole country, Buena Vista (10,820), Ujum (8695), Pico Blanco (9645) and Rovalo (7050), on the borders of Panama. Throughout the volcanic area earthquakes and landslides are of frequent occurrence.

The narrowness of the level ground between the mountains and the sea renders almost impossible the formation of any navigable river. The most important streams are those of the Atlantic seaboard, notably the San Juan, which drains Lake Nicaragua. Issuing from the lake within Nicaraguan territory, the San Juan has a course of 95 m., mostly along the frontier, to the Colorado Mouth, which is its main outfall, and belongs wholly to Costa Rica. Its chief right-hand tributaries are the San Carlos and Sarapiqui. The Reventazon, or Parismina, flows from the central plateau to the Caribbean Sea; despite the shortness of its valley, its volume is considerable, owing to the prevalence of moist trade-winds near its sources. Six small streams and one large river, the Rio Frio, flow across the northern frontier into Lake Nicaragua. On the Pacific coast all the rivers are rapid and liable to sudden floods. None is large, although three bear the prefix Rio Grande, “great river.” The Tempisque enters the Pacific at the head of the Gulf of Nicoya, and tends to silt up that already shallow inlet (5-10 fathoms) with its alluvial deposits. The Rio Grande de Tarcoles also enters the gulf, and the Rio Grande de Pirris and Rio Grande de Terrabis or Diquis flow into Coronada Bay. The Rio Grande de Tarcoles rises close to the Ochomogo Pass and the sources of the Reventazon, at the base of Irazú; and the headwaters of these two streams indicate precisely the depression in the central plateau which severs the northern from the southern mountains.

Costa Rica is not differentiated from the neighbouring lands by any very marked peculiarities of geological formation, or of plant and animal life. Its geology, flora and fauna are therefore described under (q.v.).

Climate.—Owing to the proximity of two oceans, and the varied configuration of the surface of Costa Rica, an area of a few square miles may exhibit the most striking extremes of climate; but, over the entire country, it is possible to distinguish three climatic zones—tropical, temperate and cold. These generally succeed one another as the altitude increases, although the heat is greater at the same elevation on the Pacific than on the Atlantic coast. It is, however, less oppressive, as cool breezes prevail and damp is comparatively rare. The tropical zone comprises the coast and the foothills, and ranges, in its mean annual temperature, from 72° F. to 82°. In the San José plateau (3000-5000 ft.), which is the most densely populated portion of the temperate zone, the average is 68°, with an average variation for all seasons of only 5°. Above 7500 ft. frosts are frequent, but snow rarely falls. The wet season, lasting during the prevalence of the south-west monsoon, from April to December, is clearly defined on the Pacific slope. It is curiously interrupted by a fortnight of dry weather, known as the Veranillo de San Juan, in June. Towards the Atlantic the trade-winds may bring rain in any month. Winter lasts from December to February. The normal rainfall is about 80 in., but as cloud-bursts are common, it may rise to 150 in. or even more. Rheumatism on the Atlantic seaboard, and malaria on both coasts, are the commonest forms of disease; but, as a whole, Costa Rica is one of the healthiest of tropical lands.

Population.—In 1904, according to the official returns, the total population numbered 331,340; having increased by more than one-fourth in a decade. Spanish, with various modifications of dialect, and the introduction of many Indian words, is the principal language; and the majority of the inhabitants claim descent from the Spanish colonists—chiefly Galicians—who came hither during the 16th and subsequent centuries. The percentage of Spanish blood is greater than in the other Central American republics; but there is also a large population of half-castes (ladinos or mestizos) due to intermarriage with native Indians. The resident foreigners, who are mostly Spaniards, Italians, Germans and British subjects, numbered less than 8000 in 1904; immigration is, however, encouraged by the easy terms on which land can be purchased from the state. The native Indians, though exterminated in many districts, and civilized in others, remain in a condition of complete savagery along parts of the Nicaraguan border, where they are known as Prazos or Guatusos, in the Talamanca country and elsewhere. Their numbers may be estimated at 4000. They are a quiet and inoffensive folk, who dwell in stockaded encampments, and preserve their ancestral language and customs. For an account of early Indian civilization in Costa Rica, see : Archaeology. The Mosquito Indians come every summer to fish for turtle off the Atlantic coast. As only 200 negroes were settled in Costa Rica when slavery was abolished in 1824, and no important increase ever took place through immigration, the black population is remarkably small, amounting only to some 1200.

Chief Towns and Communications.—The whites are congregated in or near the chief towns, which include the capital, (pop. 1904 about 24,500), the four provincial capitals of Alajuela (4860), Cartago (4536), Heredia (7151) and Liberia or Guanacaste (2831), with the seaports of Puntarenas (3569), on the Pacific, and Limon (3171) on the Atlantic. These, with the exception of Heredia and Liberia, are described in separate articles. The transcontinental railway from Limon to Puntarenas was begun in 1871, and forms the nucleus of a system intended ultimately to connect all the fertile parts of the country, and to join the railways of Nicaragua and Panama. It skirts the Atlantic coast as far as the small port of Matina; thence it passes inland to Reventazon, and bifurcates to cross the northern mountains; one branch going north of Irazú, while the other traverses the Ochomogo Pass. At San José these lines reunite, and the railway is continued to Alajuela, the small Pacific port of Tivives, and Puntarenas. The railways are owned partly by the state, partly by the Costa Rica railway company, which, in 1904, arranged to build several branch lines through the banana districts of the Atlantic littoral. Apart from the main lines of communication the roads are very rough, often mere tracks; and the principal means of transport are ox-carts or pack-mules. The postal and telegraphic services are also somewhat inadequate.

Agriculture and Industries.—The name “Costa Rica,” meaning “rich coast,” is well deserved; for, owing to the combination of ample sunshine and moisture with a wonderfully fertile soil, almost any kind of fruit or flower can be successfully cultivated; while the vast tracts of virgin forest, which remain along the Atlantic slopes, contain an abundance of cedar, mahogany, rosewood, rubber and ebony, with fustic and other precious dye-woods. The country is essentially agricultural, and owes its political stability to the presence of a large class of peasant proprietors, who number more than two-thirds of the population. Coffee, first planted in 1838, is grown chiefly on the plateau of San José. The special adaptability of this region to its growth is attributed to the nature of the soil, which consists of layers of black or dark-brown volcanic ash, varying in depth from 1 to 6 yds. Bananas are grown over a large and increasing area; rice, maize, barley, potatoes and beans are cultivated to some extent in the interior; cocoa, vanilla, sugar-cane, cotton and indigo are products of the warm coast-lands, but are hardly raised in sufficient quantities to meet the local demand. Stock-farming, a relatively undeveloped industry, tends to become more important, owing to the assistance which the state renders by the importation of horses, cattle, sheep and swine, from Europe and the United States, in order to improve the native breeds. In the south-east farmers are often compelled to retire with their flocks and herds before the thousands of huge, migratory vampires, which descend suddenly on the pastures and are able in one night to bleed the strongest animal to death. The manufactures are insignificant; and although silver, copper, iron, zinc, lead and marble are said to exist in considerable